Lock and latch operating mechanism.



No. 806,776. PATENTBD DEC. 12, 1905. G. J. CALEY.

LOCK AND LATCH OPERATING MECHANISM. APPLICATION FILED MAR.9, 1905 FITTEDSTTES PATENT OFFICE.

CHARLES J. CALEY, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO RUSSELL &ERVVIN MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATIONOF CONNECTICUT.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Application filed March 9, 1905. Serial No. 249,154.

To all whom it may concern:

Be it known that I, CHARLES J. CALEY, a citizen of the United States,residing at New Britain, county of Hartford, and State of Connecticut,have invented certain new and useful Improvements in Look and LatchOperating Mechanism, of which the following is a full, clear, and eXactdescription.

My invention relates to improvements in look and latch mechanism, andparticularly to bearings for a knob-and-spindle construction.

The object of the invention is to provide mechanism for operating alockor latchwhich shall besimple in construction, applicable even in placeswhere the spindle-passage is arranged at a slight angle to the door,substantially frictionless, and capable of compensation for slightmaladjustment,

The invention consists in improvements the details of which areillustrated in the accompanying single sheet of drawings. A rose-plateor thimble forms a long guide-tube for the knob-shank and is providedwith a yielding antifriction device at the outer end.

The knob-spindle is loosely pivoted to the knob shank and provided witha screwthreaded portion for the reception of what is commonly termed ascrewless knob 0on struction. r

Figure l is a section and side elevation of a construction embodying theimprovements of my invention. Fig. 2 is an end view of the rose-plate orthimble with the antifriction device. Fig. 3 is an end view of thespindle. Fig. 4 is a detail of a spring-plate for aflording a yieldingbearing for the antifriction dev1ce.

1 indicates a rose-plate or thimble, which giay be attached directly orindirectly to the oor.

2 indicates an escutcheon-plate, and 3 indicates a fragment of a door.

The outer end of the thimble is provided with an annular cavity in whichis arranged a ball-retainer 4. 5 represents one of a series of ballsmounted in this retainer.

6 is a spring-plate mounted in the cavity back of the ball-retainer fornormally pressing it outward evenly.

7 is a small flange or inwardly-turned rim of the thimble which isturned in to hold the ball-retainer in place and prevent it from extending outward beyond the position shown in Fig. 1. r

8 is a knob, which may be of any suitable construction.

with a cavity or recess in its end.

10 is a conveXly-curved conical bearing carried by the knob-shank andabutting against the shoulder 11 on the knob. This shoulder 11 alsoserves as a stop to limit the inward adjustment of the knob.

, 12 is a knob-spindle formed of suitable material and loosely fitted inthe recess in the end of the knob-shank.

13 is a pin carried by the knob-shank which passes through a hole in theknob-spindle, which is of somewhat larger diameter than the pin. Thespindle therefore has considerable play, as indicated in Fig. 1.

14 represents a series of screw-threads on the opposite end of thespindle 12, to which is attached the adjusting and clamping members of ascrewless-knob construction of any suitable type.

By this invention the knob is provided with a strong support to preventprying off the rose or thimble by reason of the long guidingbearingwhich it has. The yielding antifric- 'tion device serves to give auniform bearing for the knob-and-spindle construction at all timeswithin reasonable adjustment of the spindle. The spindle itself beingloosely carried by the knob-shank may cooperate with the usualroll-backs, even though they are somewhat out of alinement, and withoutbinding the knob or shank.

Other advantages will be apparent to those skilled in this art.

What I claim is- 1. A look and latch fitting comprising a long tubularthimble, a spring-pressed antifriction device carried in the outer endthereof, a knob, a bearing therefor, cooperating with saidspring-pressed antifriction device, and a shank extending therefrom andinto said thimble and guided thereby.

2. A look and latch fitting comprising a long tubular thimble, aspring-pressed antifriction device carried in the outer end thereof, aknob, a bearing therefor cooperating with said spring-pressed device, ashank extending therefrom and into said thimble and 9 is the shank ofthe knob, which is formed I guided thereby, and a spindle having a loosepivotal connection With said knob-shank and a screw-threaded portion atits opposite end for the purpose specified.

3. A look and latch fitting comprising a thimble, a yieldingantifriction device carried thereby, a knob and shank having a bearingfor cooperating With said antifriction device, a spindle having ascrew-threaded portion at one end and means for loosely pivoting saidspindle at the other end to said shank.

4. In a knob-and-spindle construction the combination of a rose-plate orthimble forming a long tubular guide, an antifriction de= vice arrangedat the outer end thereof, a knob, a shank, a bearing cooperating Withsaid antifriction device, said shank proj ecting into and closelyfitting in the tubular guide portion of said thimble or rose-plate,aspindle ,and means for loosely pivoting said spindle in said shank 20for the purpose specified.

CHAS." J. CALEY.

Witnesses:

M. S. WIARD, C. E. RUSSELL.

